Effect of hyperons on phase coexistence in strange matter

TL;DR

This paper investigates how hyperons influence phase coexistence in strange nuclear matter during fragmentation, revealing that hyperons enhance phase transition signals and lower the transition temperature.

Contribution

It extends the statistical model of nuclear fragmentation to include strangeness, analyzing thermodynamic observables to identify phase transition characteristics in strange matter.

Findings

Hyperons strengthen phase transition signals.

Hyperons lower the transition temperature.

Bimodal distribution indicates phase coexistence.

Abstract

The study of liquid gas phase transition in fragmentation of nuclei in heavy ion collisions has been extended to the strangeness sector using the statistical model for multifragmentation. Helmholtz's free energy, specific heat and few other thermodynamic observables have been analyzed in order to examine the occurence of phase transition in the strange matter. The bimodal behaviour of the largest cluster formed in fragmentation also strongly indicates coexistence of both the phases. The presence of hyperons strengthens the signals and also shifts the transition temperature to lower values.